OBD-II Code · Powertrain
P0741
TCC Solenoid Performance
Severity
medium
Worth booking. It costs fuel, emissions or comfort until it is fixed.
Can you drive it
Only if running normally
A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety.
Indicative cost (USD)
$300–$2,500
Varies by vehicle, diagnosis, parts, and local labor. This is not a repair quote.
TCC commanded ON but slip detected — converter not locking properly.
How a shop works this
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed.
Note every code that is set, not just this one.
Codes that appear together usually narrow the cause faster than any one of them read alone.
Read the freeze frame — the conditions the fault was recorded under.
Cold or warm, idle or load, road speed and engine speed. A fault that only appears cold is a different fault from one that only appears under load, even with the same code on the scanner.
Confirm the fault is current rather than history.
Clear the code and see whether it returns under those same conditions. A code that does not come back may have been logged during a repair, a flat battery, or a bad connection that has since been disturbed.
Then work the likely-causes list in the order shown.
That order is what a shop checks first for this code — wiring and connections before the component they run to, because a connector costs nothing to inspect and is a common answer.
If the code comes back after a repair, the underlying fault is still there. That is the point to bring in a scanner with live data and freeze-frame, or a shop that has one.
Common symptoms
- Surging at highway speed
- Reduced MPG
- Check engine light
Likely causes
- Worn TCC clutchMost common
- Failed solenoid
- Contaminated trans fluid
Read the full diagnostic procedureP0741 is the performance flag for the torque converter clutch — the solenoid is electrically fine, but the TCM has detected that when it commanded TC…
P0741 is the performance flag for the torque converter clutch — the solenoid is electrically fine, but the TCM has detected that when it commanded TCC lockup, the converter didn't actually lock up (or unlocked when it shouldn't have).
The TCM measures this by comparing engine RPM to input shaft RPM with TCC commanded ON
locked, the two should match within 20-50 RPM; slipping, you'll see the input shaft RPM trail engine RPM by 100-400+ RPM. Most TCMs set P0741 when measured TCC slip exceeds about 200 RPM for a sustained interval. Fluid first — burnt fluid is the most common cause of P0741 because TCC slip generates massive heat that cooks the fluid first and the clutches second; if the fluid is dark and smells like french fries, the converter clutch lining is already partially gone and a solenoid replacement won't bring it back. Once fluid is verified, check line pressure under load: a weak pump or stuck pressure-control solenoid that can't hold lockup pressure under throttle will throw P0741 even with a healthy converter. Internal converter clutch lining failure is a converter replacement ($300-600 part on most platforms) plus an R&R; external solenoid-pack swap is far cheaper if the converter's still good.
Vehicle-specific patterns2003-2010 Chrysler 300/Magnum/Charger with the 545RFE is the textbook P0741 vehicle — the solenoid pack and TCC solenoid degrade together, and Chrysl…
- 2003-2010Chrysler 300/Magnum/Charger with the 545RFE is the textbook P0741 vehicle — the solenoid pack and TCC solenoid degrade together, and Chrysler issued multiple TSBs covering solenoid-pack-first diagnosis before condemning the converter; $350-500 solenoid pack saves the customer a $1,500 converter job 70%+ of the time.
- 2007-2013GM trucks with the 6L80/6L90 throws P0741 from a failed TCC regulator valve in the valve body — a Sonnax oversized-valve kit is the standard ATRA-recommended fix, around $250 + 4 hours labor.
- 2004-2009Toyota Sienna/Camry V6 with the U151E throws P0741 from a stretched/worn lockup damper spring inside the converter — converter replacement only, no external fix.
- 2008-2014BMW/Ram with the ZF 8HP throws P0741 from mechatronic-sleeve oil contamination causing pressure loss to the TCC apply circuit — mechatronic rebuild required ($1,800-2,800).
Estimated repair$400 (solenoid pack + fluid) to $3,500+ (converter + R&R or 8HP mechatronic).
Look up another code
P0741 — frequently asked
What does a P0741 code mean?
TCC commanded ON but slip detected — converter not locking properly.
What causes a P0741 code?
Common causes: Worn TCC clutch; Failed solenoid; Contaminated trans fluid.
What are the symptoms of a P0741 code?
Typical symptoms: Surging at highway speed; Reduced MPG; Check engine light.
Is it safe to drive with a P0741 code?
Only if running normally. A short trip to a shop may be reasonable if the light is steady and the car runs normally. Stop safely for a flashing light, severe shaking, overheating, loss of power, or another urgent warning. The code alone cannot confirm safety. Estimated repair: $300-$2,500.
How do I diagnose a P0741 code?
Work from evidence to part, not the other way round. A code names a circuit or a symptom; it does not name the part that failed. 1. Note every code that is set, not just this one. 2. Read the freeze frame — the conditions the fault was recorded under. 3. Confirm the fault is current rather than history. 4. Then work the likely-causes list in the order shown.
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